Great and I thought yesterday was bad… I was rendering lightmaps… on preview … pc crashed and now it will not load. I’m going to try a old grapics card in it but my card is a good one so for it to die like this is terrible. I’m not happy at all… I hope it is just graphics card and not my has died … but if I can get it work again I don’t see a way to move forward with UE4 again.